Scientists have identified another possible commonality between Earth and Mars: a solid inner core. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists have identified another possible ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab. Everything is wired together so well that you rarely think about the machinery behind those steady ticks. That comfort vanishes the ...

Earth–Venus–Mars opportunity looks promising. 10–15 on-orbit refueling operations may be needed to make a crewed ship full. (A version 4 Starship could

Use left and right arrow keys to seek audio. SpaceX has teased "Marslink" as a new high-speed internet connection between Mars and Earth, with Elon Musk's startup using an adaption of its Starlink satellite network to pump internet connectivity to Mars.

Research conducted by two physicists from the National Institute of Standards and Technology (NIST) in the US reveals that clocks on Mars tick 477-millionths of a second (or 477 microseconds) faster per day, on average, compared to Earth clocks. Though ...

A manganese ring shows Mars' Utopia Planitia once held a stable ocean for around one million years, long enough for life to begin.

For anyone curious about what it's like to stand on another planet, Earth offers a few convincing previews. Mars may be 140 million miles away, but scientists and movie directors have been finding its lookalikes right here at home. Here are ten Earth spots ...